New and used 2025 GMC Sierra 2500 AT4 trucks for sale near Rockwall, TX

Iliana was a great sales rep. She was kind and very understanding of what I needed. She acquired to my needs and didn’t make me feel pressure to make any decisions until I was ready. 10/10 experience with Iliana Davila.

So far so good! This truck is the nicest truck I have ever driven. The stance, ride comfort and options are top notch. I went from a 2023 High Country that was having drive train issues but had all the creature comforts that you would expect in a top of the line truck. With the lack of confidence in that particular models 10 speed transmission issues, it became necessary to reestablish my confidence in my General Motors product.

Wonderful people. Kind & very knowledgble. Would recommend them to anybody.

Simply Exceptional service once again! They continue to be a renowned dealer who cares about their customers and reputation. Sewell will always have my business for life.

Forest, our sales representative was an amazing man. He was very professional and knowledgeable. He was also very friendly and went out if his way to make sure we knew all about the vehicle we were interested in purchasing. He went with us so I could test drive the car and explained all the features and how to work them . Forest even took me around the dealership and introduced me to various employees, showed me where the service and parts departments were and, once again introduced me to the people in those departments. He also showed me where the customer lounge and vending area was along with the free coffee area. Forest introduced me to the finance person who would be serving me. On a scale of 1 to 10, I would rate Forest a 12. Outstanding! Thank you Forest, Ralph Larry Malone

I wanted to purchase a new vehicle and Terry was the sales man who also sold my mom a car his kindness and understanding made me me feel comfortable. His customer service was spectacular. The finance person was also so kind. I will recommend this dealership to others. They know how to make their customers feel valued.

Had a great experience there hassle free. Jermey Burrell had everything laid out for me when we got there. I would recommend to anyone. Keep up the nice work.

Jeremy was incredible and made the process of buying a new car so easy. When it’s time for a new car, he will be my go to salesman.

The dealership is awesome great people . I didn’t have to do a thing every thing was done by the comfort of my own home. I would recommend this dealership to anyone looking to purchase a car !

Absolutely phenomenal experience at McKinney Buick GMC, all thanks to Derek! From the moment I walked in, he made the entire car-buying process seamless, stress-free, and enjoyable. Derek?s professionalism, knowledge, and genuine care for his customers are unmatched. He took the time to understand exactly what I was looking for and made sure I got the best deal possible. There was never any pressure?just honest guidance and top-tier customer service. He went above and beyond to ensure every detail was taken care of, making this the best car-buying experience I have ever had. If you?re in the market for a vehicle, do yourself a favor and ask for Derek. You won?t be disappointed! I cannot recommend him enough and will definitely be sending friends and family his way. Thank you, Derek, for setting the gold standard in customer service!

Brad is always great to work with. The dealership is clean and everybody is friendly. The guys were prompt getting my alignment done and checking for any recalls.

Robbie, my salesman, was outstanding!! He made it painless and is absolutely customer focused. Pricing was ultra-competitive. Dealership was clean. We will definitely go back.

Several sales personal where informative and knowledgeable in customer service. I didn’t purchase a vehicle but will give Vanguard the first choice at sales.

Nice sales people. Easy to work with, but would not move on the price of the car.

I hate singing the service for an intermittent issue likely caused by a computer chip, on board computer or software but it a serious issue when the Adaptive Cruise control just locks the brakes up at cruising speeds over 55 MPH. I am hopeful they will eventually figure out the issue. This time I requested they just deactivate Adaptive Cruise as I?m worried about serious injury. The last time the brakes locked up out of the blue, I almost lost control of the vehicle and it slide sideways almost flipping at 70 MPH.

I had a 2021 Encore GX to trade and they made the process so easy. I get very scared when it comes to purchasing vehicles and they made me feel right at home! I would definitely recommend this dealership to anyone looking to purchase.